Hey @anonymous_user_447315da, I got around to updating on my personal machine, and I see the tools where they should be (under engine/extras/Maya_AnimationRiggingTools).
Were those options checked from the initial install or did you go back and check them after installing? I have seen checking those options not actually trigger a download of anything. To get around that, I’ll usually uncheck something I don’t need, like something under target platforms, and then it seems to pick it up.